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Finding the Fourth Proportional to 17,716.76, 26,578.40 and 7,329.32

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Solution

The fourth proportional to 17,716.76, 26,578.40 and 7,329.32 is: 10,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,716.76 : 26,578.40 = 7,329.32 : x
  2. Step 2: Convert to fraction form
    17,716.76/26,578.40 = 7,329.32/x
  3. Step 3: Cross multiply
    17,716.76x = 26,578.40 × 7,329.32
  4. Step 4: Simplify right side
    17,716.76x = 194,801,429.15
  5. Step 5: Solve for x
    x = 194,801,429.15/17,716.76
  6. Step 6: Final answer
    x = 10,995.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.